Chlorophyll has distinct optical absorbance
characteristics that the CCM-200 plus exploits to
non-destructively measure relative chlorophyll
concentrations. Strong absorbance bands are present in
the blue and red regions but not the green or infrared
bands, hence the green appearance of a leaf.
By measuring the amount of energy absorbed in the red
band an estimate of the amount of chlorophyll present
in the tissue is possible. Absorbance in the infrared
band can be used to quantify and account for leaf
thickness, so providing a more accurate CCI value.
The CCM-200 plus employs new precision LED
technology to further enhance measurement accuracy
and repeatability.